Police have charged a Mason City man with two counts of first-degree murder after finding two bodies in a residence on Tuesday, according to Mason City police.

Codie Matz, 25, is the grandson of the victims, according to a news release.

Around 7:45 a.m. on Tuesday, Mason City police conducted a welfare check at a residence in the 327 27th Street SW. Upon arrival, officers found the bodies of Kenneth Hackbart, 61, and Kathleen Hackbart, 64, according to the news release.

Mason City police then requested the public's assistance in finding Matz. He was wanted as a material witness in the investigation and was considered armed and suicidal. An Iowa State Patrol trooper found him near a residence in Bondurant around 2:30 p.m. The residence is not believed to be involved with the case.

The Mason City Police Department Criminal Investigation Division is investigating the case along with the Iowa Division of Criminal Investigation.